Using Composted Horse Manure Safely in the Garden

Test for Herbicide Contamination First

Well-composted manure (no ammonia smell, unrecognizable bedding) is excellent: 1 inch under shrubs/trees attracts worms and builds soil. Till into vegetable beds each spring.

Critical Warning

Ensure the source farm does not use persistent herbicides like Grazon on pastures. These survive composting and kill garden plants. Verify with the supplier.